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Code_590703.cpp

const form = document.getElementById('registrationForm');

form.addEventListener('submit', function(event){

event.preventDefault();

alert("button clicked");

const firstName = document.getElementById('firstName').value;

const lastName = document.getElementById('lastName').value;

const email = document.getElementById('email').value;

const password = document.getElementById('password').value;

const confirmPassword = document.getElementById('confirmPassword').value;

const namePattern = /^[A-Za-z]+$/;

const emailPattern = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;

if(namePattern.test(firstName) == false){

alert("Invalid First Name");

return;

}

if(namePattern.test(lastName) == false){

alert("Invalid Last Name");

return;

}

if(emailPattern.test(email) == false){

alert("Invalid Email");

return;

}

if(password.length < 6){

alert("Password must be 6 characters");

return;

}

if(password != confirmPassword){

alert("Password does not match");

return;

}

const gender = document.querySelector('input[name="gender"]:checked');

if(gender == null){

alert("Select Gender");

return;

}

const clubs = document.querySelectorAll('input[type="checkbox"]:checked');

if(clubs.length == 0){

alert("Select at least one club");

return;

}

const reason = document.getElementById('reason').value;

if(reason.length < 20){

alert("Write at least 20 characters");

return;

}

alert("Registration Successful");

});